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(V) ! show the preparation of the following compounds (v) 2-heptanone starting from acetylene (vi) Cis-3-hexene...
Show the reagents to convert acetylene to cis -3-hexene
Name the product of the following reaction. cis-3-Hexene. trans-3-Hexene. 1-Hexene. trans-2-Hexene. cis-2-Hexene. Addition of 2 mol of HCl to 1-butyne would yield: CH_3CH_2CH_2CHCl_2 CH_3CH_2CCI_2CH_3 CH_3CH_2CHCICH_2Cl CH_3CH_2CH=CHCI CH_3CHCICHCICH_3 In the presence of excess hydrogen bromide, what is the major product of the addition of HBr to acetylene? 1, 3-dibromoethane 1-bromoethane 1, 1-dibromoethane 1, 2-dibromoethane 2-bromoethane Which of the following compounds is the major product when 1-hexyne is treated with excess HBr? 1, 1-dibromohexane 1, 1-dibromohexene 1, 2-dibromohexene 1, 2-dibromohexane 2, 2-dibromohexane
2. Which of the following compounds exhibit cis/trans Isomer CIS and transforms of the compounds that do exhibit Isomers s exhibit cis/trans isomerism? Explain why. Draw the a) Methylcyclobutane b) 3-ethyl-3-hexene c) 1-ethyl-3-methylcyclopentane d) 2,3-dimethylpentane e) 2,3-dichloro-2-hexene f) 2-butyne
10-2 Using acetylene as the starting material, show how you would synthesize the following compounds а) b) but-2-yne с) d)
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d. Prepare octane from 1-pentyne, indicate each needed
reagents.
e. Synthesize cis-2-hexene from 1-pentyne and an alkyl
halide.
f. Synthesize trans-2-hexene from 1-pentyne and an alkyl
halide.
Synthesize each compound from acetylene. You may use any other organic or inorganic reagents. a.
VI. Starting from acetylene (CH C H) and using any needed reagents to synthesize the following molecule: Show every single step of the synthesis (10 pts)
Sintetize 1) hexene from ethyne 2) Cis-3-hexene from ch2-ch2-Br
please explain
Problem 5 (10 pts) Starting from acetylene propose a synthesis of both cis-3-heptene and trans-3-heptene.
Name 4. Starting with cyclohexene and acetylene as the only source of carbons, show a synthesis of the compound below. 1. Show how you could make the given product from the given starting material. Show all steps. OH a CECH 2. Starting with acetylene and methyl bromide as your only source of carbons show a synthesis of cis-2-butene. 5. Prepare 2-methoxy-propanol from 1-bromo-propane. Show the steps and use any reagents you need. 3. Using acetylene and propyl bromide as your...
Propose synthetic pathways for the laboratory preparation of the
following compounds from the specified substrates. Show all steps
complete with reagents and structures of products. Use any required
aliphatic and inorganic reagents.
i) propanal from 3-hexene j) 2-pentanone from butanoic acid k) 3-ethyl-3-pentanol from ethyl propanoate 1) 7-(N,N-dimethylamino)-2-heptanol from 1-methylcyclohexene